6 Anniversary Address. 



Cheviots, and both are associated with greywacke and red 

 sandstone, and both had been protruded subsequently to the 

 deposition of the Cambro-silurian formation, for these beds 

 are highly inclined around the porphyry hills. 



" There has been so much discussion respecting terraces in 

 the Eildons, that we could not help directing attention to the 

 evidences of the action of water on these hills. The boulder 

 clay of the glacial era we found on the north side of the hills, 

 at a level of about 600 feet above the sea. Here a knoll was 

 pointed out, called Burg-jo, which from its name has been 

 supposed to be a work of art, either as a barrow or fortified 

 place. We could however detect neither ramparts nor ditches 

 nor artificially arranged stones to favour the notion. A rivu- 

 let of water here comes down from the hills, and this when 

 flooded, acting with great force, has hollowed out a little val- 

 ley, and cut oiF this knoll from the mass of the hill. Above 

 the boulder clay there is no distinct evidence of water levels 

 or sea-beaches. The great platform on the eastern side of the 

 northern hill has been considered a water level; but this opin- 

 ion is more than doubtful, for there is no corresponding level 

 on the other hills, while the superficial covering presents no 

 rolled blocks nor rounded pebbles, such as would have been 

 left by the action of the sea or fresh water. All the frag- 

 ments of rock in the subsoil are angular, and in the same state 

 as those which have been detached from the exposed rock, by 

 the ordinary action of the elements under sub-aerial condi- 

 tions. Other slighter shelves in the hills have also been re- 

 garded as water levels ; but under none of them are there 

 rolled stones ; nor are they level for any distance, or parallel 

 with each other. They seem to be natural breaks in 

 the rock, trimmed a little, it may be in some cases, by 

 human art. They diifer however materially from a different 

 class of terraces among the Cheviots, which are wider, 

 smoother, more regular in shape, and which were most pro- 

 bably terraces of cultivation. I saw no evidence of sea or 

 lake above the level of the boulder deposit." 



The party which followed the programme prepared for the 



